Antenna equipment and mobile communication equipment

A high gain antenna equipment is provided by improving the gain with an optimal impedance matching with an antenna element (3) in a stored state as well as in an extended state. The antenna equipment is provided with a radio communication device (4) housed in a case (2), a pullout type antenna eleme...

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Bibliographische Detailangaben
1. Verfasser:	IMANISHI, YASUHITO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS BLASTING BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL TRANSMISSION WEAPONS
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Beschreibung
Zusammenfassung:	A high gain antenna equipment is provided by improving the gain with an optimal impedance matching with an antenna element (3) in a stored state as well as in an extended state. The antenna equipment is provided with a radio communication device (4) housed in a case (2), a pullout type antenna element (3), a coil (11) acting as a matching circuit element in an extended state of the antenna element (3) and as a helical antenna in a stored state, and a switch (12) connected to the coil (11) at one end which is brought into contact at the other end with a ground terminal when the antenna element (3) is in an extended state and which is brought into contact with an open terminal when the antenna element (3) is in a stored state.